# SatClock430

![if it's cold, wear a damn jumper instead of turning on the air-con](satclock-tracking-iss.jpg)

The cheaper Atmega/Arduinos didn't have enough SRAM for the prediction
calculations, so I used a OLIMEXINO-5510 (MSP430, 32kB Flash, 4kB RAM,
25 MHz).

An interesting part of this project was the GCC MSP430 compiler not
providing double-precision floating point-- but thankfully Andrew
Thall's "float2" work saved the day!
http://andrewthall.org/papers/df64_qf128.pdf

Unfortunately there's no way to live-update the TLE information, so
you'll have to make-update and build before you want to use it in
anger...
